The Deublin 1109-710-717 is a high-performance, single-passage rotating union specifically engineered for coolant service in machine tool spindles. It features Deublin’s innovative Pop-Off™ seal technology, which allows the seal faces to separate when coolant pressure is absent, preventing dry-running and significantly extending service life. This design is ideal for applications involving high-pressure coolant and high-speed rotation. The union’s construction includes a hard-coated anodized aluminum housing and a stainless steel rotor for superior corrosion resistance and durability. Its balanced mechanical seals, made from silicon carbide, ensure reliable, leak-free operation even under demanding conditions with poor coolant filtration.